Answers to the questions researchers ask us most. If yours is not here, send us a message.
What does research use only mean?
It means the products are sold for laboratory research, such as in vitro work and preclinical studies. They are not approved for human or veterinary use and must not be used as drugs, foods, supplements or cosmetics.
Who can buy from Peptides Reference Lab?
Our products are intended for qualified researchers aged 21 or older. By ordering you confirm the products will be used only for laboratory research.
How do I get a certificate of analysis?
Contact us with your order number and the batch number on your vial. We send the record for that batch, usually within one business day.
What purity are your peptides?
Purity is measured by HPLC for each batch and reported on its certificate of analysis. Because results are batch specific, check the record for the batch you receive.
How should I store peptides when they arrive?
Move sealed vials to a freezer at -20 °C for long term storage, or a refrigerator for short periods. Keep them away from light and let vials reach room temperature before opening.
Which reconstitution solution should I use?
Bacteriostatic water suits most peptides. Acetic acid water is for compounds that dissolve poorly at neutral pH. Our research guide explains the difference.
Do peptides need to be shipped cold?
No. Lyophilized peptides are stable at room temperature for the length of normal shipping. Store them cold once they arrive.
How long does shipping take?
Orders are usually processed within one to two business days. Delivery time depends on your location and the shipping method chosen at checkout, and every order includes tracking.
Can I return a product?
Because of the nature of research materials, opened products cannot be returned. If an order arrives damaged or incorrect, contact us within 7 days of delivery and we will make it right.
Do you provide dosing information?
No. We do not provide dosing or usage guidance of any kind, because our products are not for human or animal use.
Do you offer bulk pricing?
Yes, for laboratories and institutions placing larger or recurring orders. Contact us with the compounds and quantities you need.
Is my order discreet?
Yes. Orders ship in plain outer packaging with no product names on the outside.